Finding the Fourth Proportional to 128,981,133.67, 193,280,381.59 and 94,735,075.63
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Solution
The fourth proportional to 128,981,133.67, 193,280,381.59 and 94,735,075.63 is: 141,962,092.03
Step by Step Solution
- Step 1: Write the proportion equation
128,981,133.67 : 193,280,381.59 = 94,735,075.63 : x - Step 2: Convert to fraction form
128,981,133.67/193,280,381.59 = 94,735,075.63/x - Step 3: Cross multiply
128,981,133.67x = 193,280,381.59 × 94,735,075.63 - Step 4: Simplify right side
128,981,133.67x = 18,310,431,567,723,908 - Step 5: Solve for x
x = 18,310,431,567,723,908/128,981,133.67 - Step 6: Final answer
x = 141,962,092.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.